The Microsoft .NET Framework 4.7.1 Developer Pack is a single package that bundles the .NET Framework 4.7.1, the .NET 4.7.1 Targeting Pack and the .NET 4.7.1 SDK. The corresponding language pack for Dev Pack contains the .NET Framework 4.7.1 language pack, .NET 4.7.1 SDK language pack and the Intellisense files. Developers can use this package to install all the different components for .NET 4.7.1 and build applications targeting the .NET Framework 4.7.1 using either Visual Studio 2017, Visual Studio 2015 or other IDEs.

This package installs the following components:

.NET Framework 4.7.1 Developer Pack (NDP471-DevPack-ENU.exe): This package contains the .NET Framework 4.7.1, .NET 4.7.1 Targeting Pack, .NET 4.7.1 SDK and the ENU Intellisense. For ENU machines you only need to install this package and do not need the second package.

To install the software later, choose the Save button. (When you install, the computer must be connected to the Internet.)

This version of the .NET Framework runs side-by-side with the .NET Framework 3.5 SP1 and earlier versions, but performs an in-place update for the .NET Framework 4, .NET Framework 4.5, .NET Framework 4.5.1, .NET Framework 4.5.2, .NET Framework 4.6, .NET Framework 4.6.1, .NET Framework 4.6.2, and .NET Framework 4.7.
For important information about this release, see the Known issues for the .NET Framework 4.7.1.